Carborundum wear-resistant shoe spike and preparation method thereof

ABSTRACT

The present invention belongs to the technical field of shoe spikes, and more particularly relates to a carborundum wear-resistant shoe spike. The carborundum wear-resistant shoe spike comprises a shoe spike main body and a nickel coating attached to the surface of the shoe spike main body; the surface of the shoe spike main body is also provided with a carborundum layer, and the nickel coating is disposed between the shoe spike main body and the carborundum layer. Compared with the prior art, the present invention lies in that the outer surface of the nickel coating is provided with the carborundum layer, and since the carborundum layer has the characteristics of good toughness, high hardness, good wear resistance and the like, the wear resistance property of the shoe spike can be greatly improved, and the service life of sports shoes using the shoe spike is prolonged.

FIELD OF THE INVENTION

The present invention belongs to the technical field of shoe spikes, and more particularly relates to a carborundum wear-resistant shoe spike and a preparation method thereof.

BACKGROUND OF THE INVENTION

Shoes are necessities of people in daily life, however, it is necessary for people who are fond of sports to have a pair of conformable and wear-resistant sports shoes. The service environment and the stress characteristic of the sports shoes require their shoe spikes to have relatively high wear resistance property, however, shoe spikes produced and sold in shoes manufacturing enterprises and the market at present are generally subjected to simple electroplating processing on surfaces, electroplating layers (such as nickel coatings) are formed on surfaces of the shoe spikes generally just by adopting a common electroplating process, and the common electroplating layer only has corrosion resistance without a wear resistance property, therefore, the wear resistance property of the shoe spikes is not ideal enough in the use process to cause relatively short service life of sports shoes.

On that account, it is absolutely necessary to provide a carborundum wear-resistant shoe spike having relatively high wear resistance property and a preparation method thereof.

SUMMARY OF THE INVENTION

The present invention aims at providing a carborundum wear-resistant shoe spike having relatively high wear resistance property against the defects of the prior art.

In order to achieve the above purpose, the present invention adopts the following technical solutions:

a carborundum wear-resistant shoe spike comprises a shoes spike main body and a nickel coating attached to the surface of the shoe spike main body, the surface of the shoe spike main body is provided with a carborundum layer, and the nickel coating layer is disposed between the shoe spike main body and the carborundum layer.

As an improvement on the carborundum wear-resistant shoe spike of the present invention, the thickness of the nickel coating is 40 μm-60 μm, and the thickness of the carborundum layer is 40 μm-100 μm. One of roles of the nickel coating is to prevent the shoe spike from rusting, and another role thereof is to improve the adhesion strength of the carborundum layer on the surface of the shoe spike main body, and thickness of the nickel coating can be not too large, otherwise will cause wastes of energy sources and materials, or too small, otherwise cannot play a good rustproof role. The carborundum layer can be not too large, otherwise will cause wastes of energy sources and materials, or too small, otherwise cannot play a role of improving the wear resistance property well.

As an improvement on the carborundum wear-resistant shoe spike of the present invention, the thickness of the nickel coating is 45 μm-55 μm, and the thickness of the carborundum layer is 50 μm-80 μm.

As an improvement on the carborundum wear-resistant shoe spike of the present invention, the carborundum layer contains nickel. Because carborundum (namely SiC) has stable property per se and cannot be dissolved in solvents, such as water, carborundum particles need to be mixed into an electroplating solution during electroplating; the carborundum particles are uniformly stirred up during electroplating and are then deposited on the surface of a workpiece together with a coating, wherein the carborundum particles are micropowder-level particles.

Relative to the prior art, the present invention lies in that the outer surface of the nickel coating is provided with the carborundum layer, and since the carborundum layer has the characteristics of good toughness, high hardness, good wear resistance and the like, the wear resistance property of the shoe spike can be greatly improved, and the service life of sports shoes using the shoe spike is prolonged. In addition, when the carborundum layer is in contact with the ground, the friction coefficient can be increased, so that the shoe spike plays an anti-sliding role in contact with the ground to prevent a user from falling down, and thus the use security of the sports shoes using the shoe spike is improved.

Another objective of the present invention is to provide a preparation method for the carborundum wear-resistant shoe spike, comprising the following steps:

1). carrying out ultrasonic deoiling on the shoe spike main body, then washing with water and activating the washed shoe spike main body with an acid solution; oil stains, impurities and the like on the surface of the shoe spike main body can be removed by the ultrasonic deoiling to prevent these oil stains or impurities from influencing the adhesion force between the nickel coating and the shoe spike main body, and some uneven nicks can be formed on the surface of the shoe spike main body by means of the activation with the acid solution, so that the bonding force between the shoe spike main body and the nickel coating is increased, and peeling-off of the nickel layer is avoided;

2). putting the shoe spike main body processed in the first step in a nickel-containing electroplating solution for electroplating, and thus forming a nickel coating on the surface of the shoe spike main body;

3). putting the shoe spike main body containing the nickel coating in a carborundum-containing electroplating solution for electroplating, and thus forming a carborundum layer on the surface of the nickel coating; and

4). washing with water, passivating, then washing with water again and drying to obtain the finished product.

As an improvement on the preparation method for the carborundum wear-resistant shoe spike of the present invention, an ultrasonic solution adopted for the ultrasonic deoiling in the first step is an aqueous solution of deoiling powder, wherein the ultrasonic temperature is 60-80° C., and the ultrasonic duration time is 10-15 min. The deoiling powder is a low-foaming deoiling degreasant refined from multiple surfactants, decontaminants, penetrants, detergent assistants and the like and has favorable wetting, solubilizing and emulsifying capabilities and the like and relatively strong deoiling capability. The washed workpiece has no visible oil films or oil spots on the surface. The deoiling powder used in the present invention is commercially available deoiling powder. The deoiling powder can be used for removing oil stains, impurities and the like on the surface of the shoe spike main body well in cooperation with ultrasonic.

As an improvement on the preparation method for the carborundum wear-resistant shoe spike of the present invention, the acid solution in the first step is a hydrochloric acid solution, sulfuric acid solution or nitric acid solution having the mass concentration being 10-20%, and the activation duration time is 5-10 s. These types of acid solutions have a better etching effect and can increase the roughness on the surface of the shoe spike main body, and further increase the bonding force between the shoe spike main body and the nickel coating.

As an improvement on the preparation method for the carborundum wear-resistant shoe spike, the nickel-containing electroplating solution in the second step comprises the following components: 230-280 g/L nickel sulfate, 40-60 g/L nickel chloride, 40-50 g/L boric acid and 8-12 g/L cobalt sulfate, and a solvent used by the electroplating solution is water.

As an improvement on the preparation method for the carborundum wear-resistant shoe spike of the present invention, the carborundum-containing electroplating solution in the third step comprises the following components: 230-280 g/L nickel sulfate, 40-60 g/L nickel chloride, 40-50 g/L boric acid, 8-12 g/L cobalt sulfate and 500-700 g/L carborundum particles, a solvent used by the electroplating solution is water, and the average particle size of the carborundum particles is 10-50 μm. The average particle size of the carborundum particles can be not too large, and otherwise is easy to settle and adverse to electroplating operation. The electroplating solution can form a nickel-phosphorus-carborundum composite coating on the surface of the shoe spike main body, and the composite coating has favorable friction resistance property. Wherein, the carborundum particles can be cooked with a nitric acid solution having the mass concentration being 10-20% prior to use, so as to remove an adsorption layer on its surface and improve the bonding force with the nickel coating.

As an improvement on the preparation method for the carborundum wear-resistant shoe spike of the present invention, 50-200 g/L chromic acid is used for passivating in the fourth step, the passivating duration time is 30-60 s, and the passivating temperature is 20-30° C. The role of passivating lies in that nickel and the like in the carborundum layer are converted into an unlikely-oxidized state so as to prolong the service life of the shoe spike.

Compared with the prior art, the method disclosed by the present invention is simple to operate and can form a firm, dense and wear-resistant carborundum layer on the surface of the shoe spike main body, and thus the service life and the use security of the sports shoes using the shoe spike can be prolonged and improved.

DETAILED DESCRIPTIONS OF THE PREFERRED EMBODIMENTS

The present invention and beneficial effects thereof are further described in detail as below in conjunction with the specific embodiments, but the specific embodiments of the present invention are not limited thereto.

Embodiment 1

The embodiment provides a carborundum wear-resistant shoe spike, comprising a shoe spike main body and a nickel coating attached to the surface of the shoe spike main body, wherein the surface of the shoe spike main body is also provided with a carborundum layer, and the nickel coating is disposed between the shoe spike main body and the carborundum layer. The thickness of the nickel coating is 50 μm, the thickness of the carborundum layer is 70 μm, and the carborundum layer contains nickel.

A preparation method for the carborundum wear-resistant shoe spike comprises the following steps:

1. carrying out ultrasonic deoiling on the shoe spike main body, then washing with water and activating the washed shoe spike main body with an acid solution; wherein an ultrasonic solution adopted for the ultrasonic deoiling in the first step is an aqueous solution of deoiling powder, the ultrasonic temperature is 70° C., and the ultrasonic duration time is 12 min so as to remove oil stains, impurities and the like on the surface of the shoe spike main body; and then washing with water twice to remove the deoiling powder, wherein the acid solution is a hydrochloric acid solution having the mass concentration being 15% so as to carry out etching and activating processing on the surface of the shoe spike main body.

2. putting the shoe spike main body processed in the first step in a nickel-containing electroplating solution, and thus forming a dense and firmly bonded nickel coating on the surface of the shoe spike main body; wherein the nickel-containing electroplating solution comprises the following components: 250 g/L nickel sulfate, 50 g/L nickel chloride, 45 g/L boric acid and 10 g/L cobalt sulfate, and a solvent used by the electroplating solution is water.

3. putting the shoe spike main body containing the nickel coating in a carborundum-containing electroplating solution for electroplating, and thus forming a carborundum layer on the surface of the nickel coating; the carborundum-containing electroplating solution comprises the following components: 250 g/L nickel sulfate, 50 g/L nickel chloride, 45 g/L boric acid, 10 g/L cobalt sulfate and 600 g/L carborundum particles, a solvent used by the electroplating solution is water, and the average particle size of the carborundum particles is 20 μm. The carborundum particles are uniformly stirred up during electroplating and are then deposited on the surface of the nickel coating together with a nickel-containing coating, and thus forming a nickel-phosphorus-carborundum composite coating, and the composite coating has favorable friction resistance property. Wherein, the carborundum particles can be cooked with a nitric acid solution having the mass concentration being 15% prior to use, so as to remove an adsorption layer on its surface and improve the bonding force with the nickel coating. The operation of plating the carborundum layer (in the third step) is repeated twice.

4. washing with water for three times, passivating, then washing with water for three times again and drying to obtain the finished product. Wherein, 100 g/L chromic acid is used for passivating, the passivating duration time is 40 s, and the passivating temperature is 25° C.

Embodiment 2

The embodiment provides a carborundum wear-resistant shoe spike, comprising a shoe spike main body and a nickel coating attached to the surface of the shoe spike main body, wherein the surface of the shoe spike main body is also provided with a carborundum layer, and the nickel coating is disposed between the shoe spike main body and the carborundum layer. The thickness of the nickel coating is 42 μm, the thickness of the carborundum layer is 90 μm, and the carborundum layer contains nickel.

A preparation method for the carborundum wear-resistant shoe spike comprises the following steps:

1. carrying out ultrasonic deoiling on the shoe spike main body, then washing with water and activating the washed shoe spike main body with an acid solution; wherein an ultrasonic solution adopted for the ultrasonic deoiling in the first step is an aqueous solution of deoiling powder, the ultrasonic temperature is 60° C., and the ultrasonic duration time is 10 min so as to remove oil stains, impurities and the like on the surface of the shoe spike main body; and then washing with water twice to remove the deoiling powder, wherein the acid solution is a sulfuric acid solution having the mass concentration being 10% so as to carry out etching and activating processing on the surface of the shoe spike main body.

2. putting the shoe spike main body processed in the first step in a nickel-containing electroplating solution, and thus forming a dense and firmly bonded nickel coating on the surface of the shoe spike main body; wherein the nickel-containing electroplating solution comprises the following components: 270 g/L nickel sulfate, 40 g/L nickel chloride, 50 g/L boric acid and 8 g/L cobalt sulfate, and a solvent used by the electroplating solution is water.

3. putting the shoe spike main body containing the nickel coating in a carborundum-containing electroplating solution for electroplating, and thus forming a carborundum layer on the surface of the nickel coating; the carborundum-containing electroplating solution comprises the following components: 270 g/L nickel sulfate, 40 g/L nickel chloride, 50 g/L boric acid, 8 g/L cobalt sulfate and 550 g/L carborundum particles, a solvent used by the electroplating solution is water, and the average particle size of the carborundum particles is 30 μm. The carborundum particles are uniformly stirred up during electroplating and are then deposited on the surface of the nickel coating together with a nickel-containing coating, and thus forming a nickel-phosphorus-carborundum composite coating, and the composite coating has favorable friction resistance property. Wherein, the carborundum particles can be cooked with a nitric acid solution having the mass concentration being 12% prior to use, so as to remove an adsorption layer on its surface and improve the bonding force with the nickel coating. The operation of plating the carborundum layer is repeated twice.

4. washing with water for three times, passivating, then washing with water for three times again and drying to obtain the finished product. Wherein, 150 g/L chromic acid is used for passivating, the passivating duration time is 50s, and the passivating temperature is 20° C.

Embodiment 3

The embodiment provides a carborundum wear-resistant shoe spike, comprising a shoe spike main body and a nickel coating attached to the surface of the shoe spike main body, wherein the surface of the shoe spike main body is also provided with a carborundum layer, and the nickel coating is disposed between the shoe spike main body and the carborundum layer. The thickness of the nickel coating is 60 μm, the thickness of the carborundum layer is 45 μm, and the carborundum layer contains nickel.

A preparation method for the carborundum wear-resistant shoe spike comprises the following steps:

1. carrying out ultrasonic deoiling on the shoe spike main body, then washing with water and activating the washed shoe spike main body with an acid solution; wherein an ultrasonic solution adopted for the ultrasonic deoiling in the first step is an aqueous solution of deoiling powder, the ultrasonic temperature is 75° C., and the ultrasonic duration time is 15 min so as to remove oil stains, impurities and the like on the surface of the shoe spike main body; and then washing with water twice to remove the deoiling powder, wherein the acid solution is a nitric acid solution having the mass concentration being 20% so as to carry out etching and activating processing on the surface of the shoe spike main body.

2. putting the shoe spike main body processed in the first step in a nickel-containing electroplating solution, and thus forming a dense and firmly bonded nickel coating on the surface of the shoe spike main body; wherein the nickel-containing electroplating solution comprises the following components: 230 g/L nickel sulfate, 60 g/L nickel chloride, 40 g/L boric acid and 12 g/L cobalt sulfate, and a solvent used by the electroplating solution is water.

3. putting the shoe spike main body containing the nickel coating in a carborundum-containing electroplating solution for electroplating, and thus forming a carborundum layer on the surface of the nickel coating; the carborundum-containing electroplating solution comprises the following components: 230 g/L nickel sulfate, 60 g/L nickel chloride, 40 g/L boric acid, 12 g/L cobalt sulfate and 650 g/L carborundum particles, a solvent used by the electroplating solution is water, and the average particle size of the carborundum particles is 4 μm. The carborundum particles are uniformly stirred up during electroplating and are then deposited on the surface of the nickel coating together with a nickel-containing coating, and thus forming a nickel-phosphorus-carborundum composite coating, and the composite coating has favorable friction resistance property. Wherein, the carborundum particles can be cooked with a nitric acid solution having the mass concentration being 20% prior to use, so as to remove an adsorption layer on its surface and improve the bonding force with the nickel coating. The operation of plating the carborundum layer is repeated twice.

4. washing with water for three times, passivating, then washing with water for three times again and drying to obtain the finished product. Wherein, 200 g/L chromic acid is used for passivating, the passivating duration time is 50 s, and the passivating temperature is 30° C.

The carborundum wear-resistant shoe spikes of embodiments 1 to 3 and a shoe spike (the surface is only processed with a nickel layer, Contrast) which does not undergo carborundum layer plating are subjected to the following tests:

carrying out friction processing on the surface coating of the shoe spike by using wear-resistant testing equipment for 30 min, respectively recording weight of the shoe spike before friction processing and the weight of the shoe spike after friction processing, and calculating the weight loss ratio of the shoe spike, the obtained results see Table 1:

TABLE 1 a wear-resistant testing result between the shoe spikes of Embodiments 1 to 3 and the shoe spike provided by Contrast Weight (g) before Weight (g) after Weight loss Group processing processing ratio (%) Embodiment 1 4.2138 4.1918 0.522 Embodiment 2 4.2246 4.2028 0.516 Embodiment 3 4.2356 4.2140 0.510 Contrast 4.1543 4.0313 2.96

As can be seen from Table 1: by disposing the carborundum layer on the surface of the shoe spike main body, the weight loss ratio of the shoe spike main body is greatly reduced under the same friction processing condition, and it is thus clear that the wear resistance property of the shoe spike main body can be greatly improved due to the arrangement of the carborundum layer.

According to the disclosure and teaching of the description abovementioned, those skilled in the art of the present invention can also make appropriate alterations and amendments on the embodiments abovementioned. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some amendments and alterations made to the present invention should also fall into the protection scope of claims of the present invention. Moreover, although some specific terms are used in this description, these terms are just for a purpose of facilitating illustration, rather than constituting any limitation to the present invention. 

What is claimed is:
 1. A carborundum wear-resistant shoe spike, comprising a shoe spike main body and a nickel coating attached to the surface of the shoe spike main body, wherein the surface of the shoe spike main body is also provided with a carborundum layer, and the nickel coating is disposed between the shoe spike main body and the carborundum layer.
 2. The carborundum wear-resistant shoe spike according to claim 1, wherein the thickness of the nickel coating is 40 μm-60 μm, and the thickness of the carborundum layer is 40 μm-100 μm.
 3. The carborundum wear-resistant shoe spike according to claim 2, wherein the thickness of the nickel coating is 45 μm-55 μm, and the thickness of the carborundum layer is 50 μm-80 μm.
 4. The carborundum wear-resistant shoe spike according to claim 1, wherein the carborundum layer contains nickel.
 5. A preparation method for the carborundum wear-resistant shoe spike, comprising the following steps: 1). carrying out ultrasonic deoiling on a shoe spike main body, then washing with water and activating the washed shoe spike main body with an acid solution; 2). putting the shoe spike main body processed in the first step in a nickel-containing electroplating solution for electroplating, and thus forming a nickel coating on the surface of the shoe spike main body; 3). putting the shoe spike main body containing the nickel coating in a carborundum-containing electroplating solution for electroplating, and thus forming a carborundum layer on the surface of the nickel coating; and 4). washing with water, passivating, washing with water again and drying to obtain the finished product.
 6. The preparation method for the carborundum wear-resistant shoe spike according to claim 5, wherein an ultrasonic solution adopted for ultrasonic deoiling in the first step is an aqueous solution of deoiling powder, the ultrasonic temperature is 60-80° C., and the ultrasonic duration time is 10-15 min.
 7. The preparation method for the carborundum wear-resistant shoe spike according to claim 5, wherein the acid solution in the first step is a hydrochloric acid solution, sulfuric acid solution or nitric acid solution having the mass concentration being 10-20%, and the activation duration time is 5-10 s.
 8. The preparation method for the carborundum wear-resistant shoe spike according to claim 5, wherein the nickel-containing electroplating solution in the second step comprises the following components: 230-280 g/L nickel sulfate, 40-60 g/L nickel chloride, 40-50 g/L boric acid and 8-12 g/L cobalt sulfate, and a solvent used by the electroplating solution is water.
 9. The preparation method for the carborundum wear-resistant shoe spike according to claim 5, wherein the carborundum-containing electroplating solution in the third step comprises the following components: 230-280 g/L nickel sulfate, 40-60 g/L nickel chloride, 40-50 g/L boric acid, 8-12 g/L cobalt sulfate and 500-700 g/L carborundum particles, a solvent used by the electroplating solution is water, and the average particle size of the carborundum particles is 10-50 μm.
 10. The preparation method for the carborundum wear-resistant shoe spike according to claim 5, wherein 50-200 g/L chromic acid is used for passivating in the fourth step, the passivating duration time is 30-60 s, and the passivating temperature is 20-30° C. 